Grate



R. TURNER.

(No Model.)

ilwrrnn Sii/iras Barnier @Brisa RICHARD TRNER, OF lVlLKES-BABR, PENNSYLVANIA.

GRATE.

SPECIFICATION" forming part of Letters Patent No. 310,097, dated December 30, 18.84.

Application filed March 12, 1884. (No model.)

To all whom, t may concern:

Be it known that I, RICHARD TURNER, a citizen ofthe United States, and a resident of Vilkes-Barr, in the county of Luzerne and State of Pennsylvania, have invented certain newand useful Improvements in Grates, and l do hereby declare that the following is afull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure lis a top view of my improved grate. Fig. 2 is a perspective view ofthe same. Fig. 3 is a perspective View of one of the gratebars, which is provided with vertical'transverse wings or projections; and Fig. 4 is a cross-sectional view taken on line x Fig. l.

Similar letters of reference indicate corresponding parts in all the iigures.

My invention has relation to that class of grates in which the bars are given a reciprocating back and forward motion by means of suitable mechanism; and it consists in the improved construction and combination ofparts of a grate of the above-mentioned class, as will be hereinafter more fully described, and particularly pointed out in the claim.

In the laccompanying drawings, A A and B B represent the grate-bars, the construction of which will be hereinafter fully explained. The grate-bars A A are supported upon the sliding cross-pieces C C, while the bars B B, which alternate with the bars A A, are supported upon the sliding crosspieces D l). These cross-pieces slide upon guides or ways E E on the inner side of a main frame, F. In the forward end of this frame F are journalcd the ends of a rock-shaft, G, adapted to be operated by means of a handle, G', and provided both upon its upper and lower edges with two lugs or projections, H H. To the upper lugs of the rock-shaft are pivotally secured the forward ends of two pitmen, l, the rear ends of which are secured to the forward sliding crosspiece of the bars A A, while to the lower lugs or projections ofthe rock-shaft are pivotally secured the 'forward ends of two longer pitmen, J J, the rear ends of which are secured to the rear sliding cross-piece of the bars B B. The object of this arrangement will be hereinafter set forth.

A A and B B indicate the two sets or series of grate-bars, -which are arranged upon their sliding supports alternately with each other, as will be readily understood by reference to the drawings, having pairs of downwardlyprojecting clamping-lips A and B, which straddle and clamp the sliding cross-pieces and allow each grate-bar to be moved separately without disturbing the remaining ones.

The grate-bars A, one of which is shown in detail in Fig. 3 of the drawings, are each provided upon its upper edge or face with a series of forwardly-inclined teeth, A', and also has cast upon it a number of vertical transverse wings or projections, A, of such a width as to extend entirely across the space between the sides of the bars A and the smooth sides of the bars B B. These bars B B are cast with a series of teeth, B', upon their upper edges, and are placed upon their sliding supports in such a manner that their teeth inclinev in the opposite direction to those of the alternating bars A A.

From the foregoing description, taken in connection with the accompanying drawings, the construction of my improved grate will readily be understood without requiring further explanation. lt will be seen that when the rock-shaft G is oscillated by its handle G the two sets of grate-bars will, through the intervening mechanism previously described, be moved backward and forward in opposite directions-that is to say, when the bars A are moved backward the bars B will be moved forward, and vice Versa. The vertical transverse wings of the bars A are placed at such a distance apart that one pair of wings on the forward stroke of the said bars will reach the point touched bythe `next pair of wings on the backward swing of the bars, thereby passing over every point between the smooth sides ofthe bars B B.

By constructing the two sets of bars with teeth inclined in opposite directions, and by operating the bars in the manner described, the ashes in the lower portion of the stove will be thoroughly agitated and shaken down,

IOO

the said ways, means, as shown, for sliding 15 said cross-bars, and grate-bars having pairs of downwardlyprojecting lips upon their under sides straddling and clamping the cross-bars, as and for the purpose shown and set forth.

In testimony that I claim the foregoing as 2o my own I have hereunto aixed my signature in presence of two witnesses.

h1 RICHARD TURNER.

niark. Vitnesses:

W. S. IARsoNs, JOHN MAsTRRsoN. 

